diff --git a/package-lock.json b/package-lock.json
index 6d6f326b9..0a9e07bcd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4468,11 +4468,12 @@
       }
     },
     "clean-css-cli": {
-      "version": "5.4.2",
-      "resolved": "https://registry.npmjs.org/clean-css-cli/-/clean-css-cli-5.4.2.tgz",
-      "integrity": "sha512-BYxVOuBQL8f2+yucOgmwUi1idpAQV4k9bxG6mxTrBikuwrkXBG5/Pq6tqCi4GZUtgvslMj8dGVtFSoXp9OLzeA==",
+      "version": "5.5.0",
+      "resolved": "https://registry.npmjs.org/clean-css-cli/-/clean-css-cli-5.5.0.tgz",
+      "integrity": "sha512-Vr9t8o59YaPcRw/4hyJjEh4zU/BlOtlJJ8465El6QMYWbkf5nN1mhAljX6FIb0bfpkGlYNFKPCyTz7oFCHOblQ==",
       "dev": true,
       "requires": {
+        "chokidar": "^3.5.2",
         "clean-css": "^5.2.2",
         "commander": "7.x",
         "glob": "^7.1.6"
diff --git a/package.json b/package.json
index d36180b09..dd5e89be1 100644
--- a/package.json
+++ b/package.json
@@ -133,7 +133,7 @@
     "autoprefixer": "^10.4.0",
     "browser-sync": "^2.27.7",
     "bundlewatch": "^0.3.2",
-    "clean-css-cli": "^5.4.2",
+    "clean-css-cli": "^5.5.0",
     "concurrently": "^6.4.0",
     "eslint": "^8.4.0",
     "eslint-config-xo": "^0.39.0",